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A reduction in the pupil’s response to affective sounds in psychopathy and related personality traits
Physiological Reports, Volume: 10, Issue: 6
Swansea University Authors: Nicola Gray , Aimee McKinnon
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DOI (Published version): 10.14814/phy2.15235
Abstract
The pupil of the eye dilates in response to affective information, even if that information is not visual. We used this affective modulation of the pupil to examine the hypothesis that individuals with high traits of psychopathy have an insensitivity to emotional stimuli. We also examined general pe...
Published in: | Physiological Reports |
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ISSN: | 2051-817X 2051-817X |
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Wiley
2022
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URI: | https://cronfa.swan.ac.uk/Record/cronfa59628 |
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2022-03-23T15:02:55.5892663 v2 59628 2022-03-15 A reduction in the pupil’s response to affective sounds in psychopathy and related personality traits d3dfb6fa4b6e057dd587f5e9f28a581f 0000-0003-3849-8118 Nicola Gray Nicola Gray true false 6c98a4d9f16a224819aae292acd981c4 Aimee McKinnon Aimee McKinnon true false 2022-03-15 PSYS The pupil of the eye dilates in response to affective information, even if that information is not visual. We used this affective modulation of the pupil to examine the hypothesis that individuals with high traits of psychopathy have an insensitivity to emotional stimuli. We also examined general personality traits related to psychopathy. A sample of 120 healthy young men had their pupils monitored while they listened to sound clips that conveyed either neutral emotion (e.g., rain), negative emotion (e.g., a person screaming) or positive emotion (e.g., people laughing). Psychopathy and general personality traits were measured via self-report questionnaire. As expected, both the positive and negative emotional sounds produced greater dilation in the pupil size than neutral sounds. This affective modulation of the pupil was found to be reduced for the negative sounds for people high on the “callous/affective” components of psychopathy (the Affective facet of the SRP-4 and the Meanness scale of the TriPM) and the general personality traits of Reward Dependence and Cooperativeness. The results indicate that these callous traits of psychopathy and general personality may be underpinned by a reduction in the ability to effectively process or monitor emotional stimuli. Journal Article Physiological Reports 10 6 Wiley 2051-817X 2051-817X Cloninger TCI, emotion, psychobiological model of personality, psychopathy, pupillometry, SRP- 4, triarchic model of psychopathy, TriPM 21 3 2022 2022-03-21 10.14814/phy2.15235 COLLEGE NANME Psychology School COLLEGE CODE PSYS Swansea University 2022-03-23T15:02:55.5892663 2022-03-15T19:37:23.2406993 Faculty of Medicine, Health and Life Sciences School of Health and Social Care - Public Health Nicola Gray 0000-0003-3849-8118 1 Aimee McKinnon 2 Robert J. Snowden 0000-0001-9900-480x 3 59628__22658__cc1321c460754259862c8ab731ac94f1.pdf 59628.pdf 2022-03-23T15:00:46.7602818 Output 944226 application/pdf Version of Record true © 2022 The Authors. This is an open access article under the terms of the Creative Commons Attribution License true eng http://creativecommons.org/licenses/by/4.0/ |
title |
A reduction in the pupil’s response to affective sounds in psychopathy and related personality traits |
spellingShingle |
A reduction in the pupil’s response to affective sounds in psychopathy and related personality traits Nicola Gray Aimee McKinnon |
title_short |
A reduction in the pupil’s response to affective sounds in psychopathy and related personality traits |
title_full |
A reduction in the pupil’s response to affective sounds in psychopathy and related personality traits |
title_fullStr |
A reduction in the pupil’s response to affective sounds in psychopathy and related personality traits |
title_full_unstemmed |
A reduction in the pupil’s response to affective sounds in psychopathy and related personality traits |
title_sort |
A reduction in the pupil’s response to affective sounds in psychopathy and related personality traits |
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d3dfb6fa4b6e057dd587f5e9f28a581f 6c98a4d9f16a224819aae292acd981c4 |
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d3dfb6fa4b6e057dd587f5e9f28a581f_***_Nicola Gray 6c98a4d9f16a224819aae292acd981c4_***_Aimee McKinnon |
author |
Nicola Gray Aimee McKinnon |
author2 |
Nicola Gray Aimee McKinnon Robert J. Snowden |
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Journal article |
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Physiological Reports |
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10 |
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6 |
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2022 |
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Swansea University |
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2051-817X 2051-817X |
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10.14814/phy2.15235 |
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Wiley |
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Faculty of Medicine, Health and Life Sciences |
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The pupil of the eye dilates in response to affective information, even if that information is not visual. We used this affective modulation of the pupil to examine the hypothesis that individuals with high traits of psychopathy have an insensitivity to emotional stimuli. We also examined general personality traits related to psychopathy. A sample of 120 healthy young men had their pupils monitored while they listened to sound clips that conveyed either neutral emotion (e.g., rain), negative emotion (e.g., a person screaming) or positive emotion (e.g., people laughing). Psychopathy and general personality traits were measured via self-report questionnaire. As expected, both the positive and negative emotional sounds produced greater dilation in the pupil size than neutral sounds. This affective modulation of the pupil was found to be reduced for the negative sounds for people high on the “callous/affective” components of psychopathy (the Affective facet of the SRP-4 and the Meanness scale of the TriPM) and the general personality traits of Reward Dependence and Cooperativeness. The results indicate that these callous traits of psychopathy and general personality may be underpinned by a reduction in the ability to effectively process or monitor emotional stimuli. |
published_date |
2022-03-21T20:10:29Z |
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1821346973599399936 |
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11.04748 |